Snail darter, focus of epic conservation fight, is recovered


              FILE — The snail darter is pictured in Knoxville, Tenn., on April 9, 2008. The U.S. Department of the Interior announced on Tuesday the Tennessee fish's official removal from the Federal List of Threatened and Endangered Wildlife. (Joe Howell/Knoxville News Sentinel via AP, File)
            
              FILE — Retired professor Dr. David Etnier (center) and a group of scientists check the state of the snail darter in the Holston River north of Knoxville, Tenn., on April 9, 2008. The U.S. Department of the Interior announced on Tuesday its official removal from the Federal List of Threatened and Endangered Wildlife. (Joe Howell/Knoxville News Sentinel via AP, File)
Snail darter, focus of epic conservation fight, is recovered